Trans-Asia Power Generation Corp.Diesel Power Plants
Power Plant Operation SystemMajor Components
ENGINE
FUEL SYSTEM
AIR SYSTEM
LUBRICATION SYSTEM
COOLING WATER SYSTEM
EXHAUST GAS SYSTEM
STEAM SYSTEM
ELECTRICAL SYSTEM
A diesel power plant requires the following component and systems to operate.
Power Plant ComponentsEngine Main Components
CylinderExhaust
Turbo Charger
Air intake
Cylinder Head
Generator
Exciter
Fuel pipesLube oil pipes
Cooling system pipes
ENGINEThis is the major component of the power plant that develops electricity. TAPGC uses four stroke engines.
Fuel SystemPower Plant Operation System
FUEL SYSTEMThis system includes the storage tanks, purifiers, filters, pumps, heaters and connecting pipes, and the internal injection. This system is paramount for the transfer of fuel to the engine.
Pumps
Filters
Auto backwash filter
Fuel SystemPower Plant Operation System
6
Fuel System – HFO Flow diagram
Oil Trap/Separator
7
SFO Flow DiagramDelivery Truck SFO Storage Tank
SFO Ring Pump
Fuel Oil ModuleAuto-Backflush FilterDiesel Engine
Excess Diesel
Fuel System – SFO Flow diagramPower Plant Operation System
SFO Auto Backwash Filter
Fuel System – SFO FiltersPower Plant Operation System
FO Module
Fuel Module is where the fuel (either SFO or ADO) is shifted whichever is necessary for the
mode of engine operation.
Power Plant ComponentsAir System - Starting & Control Air Flow
AIR SYSTEMThis system supplies the required quantity of air for engine starting.
Power Plant ComponentsSteam System
STEAM SYSTEMSteam system is necessary for the heat needed for the fuel system to reduce the viscosity of fuel as required. Also required for the purifiers of fuels and lubes.
Steam system has two sources:- Exhaust Gas recovery boiler - Oil fired steam Generator
- Used whenever the plant is on standby
Exhaust Gas Recovery Boiler
Oil Fired Steam Generator
Power Plant ComponentsSteam System
Fuel Oil Module
Condenser tank
Exhaust Gas From The Engine
Condensed Water Tank
Steam Drum
Pump
Header
Vent
LUBRICATION SYSTEMThis system maintains the efficiency of the engine. Main functions are: lubrication of moving parts to reduce friction, removing heat from pistons and bearings, carry away solid particles to maintain the cleanliness of engine parts.
Power Plant ComponentsLubrication System
LO Final FilterLO Auto Backwash Filter
LO Purifier
13
Hot water
Cold water
SumpTank
Vent
Pump
Lube Oil Rebatch Tank Sludge Tank
EngineIntercooler
Power Plant ComponentsLubrication System
Radiator
Fuel valve
Fuel valve Cooler
Collecting Tank
Cylinder Jacket
Power Plant ComponentsCooling Water System – Fuel Valve
COOLING WATER SYSTEMThe purpose of this system is to regulate the temperature of the cylinders, and charge air to avoid overheating. TAPGC uses the radiator for its cooling system.
Power Plant ComponentsCooling Water System – Raw and fresh water system
15Condenser Tank
Raw Water Tank
Fuel Valve Cooler
To Engine Jacket
Drain
Drain
Condenser Tank
Expansion Tank
Expansion Tank
Power Plant ComponentsCooling Water System – Jacket and Charge Air
Power Plant ComponentsElectrical System
ELECTRICAL SYSTEMThrough this system, electricity is synchronized to the grid for dispatch. This also include the whole electrification system in the power plant.
Black Start- Used for
emergency start up of the power
plant
Substation-Transformer- Circuit Breaker
ControlRoom
Switch Board